code: def original_layer_class():
      return RelPartialLearnableDecoderLayer
  
file_path: parallelformers/parallelformers/policies/transfo_xl.py
imports: from transformers.models.transfo_xl.modeling_transfo_xl import RelPartialLearnableDecoderLayer
  from parallelformers.policies.base import Layer, Policy
  from parallelformers.utils.dist_utils import AllReduceLinear
label_desc: Use image node_id 6 for calling the TransfoXLPolicy obj's underlying member method code with example usage: obj.original_layer_class() and returns: RelPartialLearnableDecoderLayer